Of course, this study does not settle the question of how potentially harmful a new mercury filling is.
当然，这项研究没有回答新的汞合金填充物具有多大的潜在危害。
Vitamins and minerals are essential to human life, but taking supplements in excessive amounts can be harmful, a fact many people are unaware of.
维生素和矿物质对人的生命至关重要，但是摄入过量便会有害，许多人还不了解这一点。
Vitamins and minerals are essential to human life, but taking supplements in excessive amounts can be harmful, a fact many people are unaware of.
维生素和矿物质对人的生命至关重要，但是摄入过量便会有害，许多人还不了解这一点。
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